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57 <br />Side slopes will be graded to no steeper than 2(H): 1(V) slope prior to cover <br />placement. <br />2. For DWDA #2, an average of no less than one foot of cover material including <br />minimum of nine inches of suitable topsoil or topsoil substitute material will be <br />placed over the graded slopes. <br />3. DWDA #3 will have no less than four feet of cover material placed over the final <br />graded slopes. During construction of DWDA #3, the founding will be over - <br />excavated to four feet, salvaging approximately 30,000 CY of material that will <br />be used at the time of final reclamation. Because DWDA #3 will be situated on <br />previously disturbed ground, it is anticipated, very little topsoil, if any, will be <br />available for salvage. Replacement depths of topsoil and subsoil for DWDA #3 <br />will be based on the amount of topsoil that is salvaged during construction. A <br />topsoil pile has been designed with a capacity of approximately 5,000 CY should <br />topsoil be available for salvage. Whatever depth of topsoil is salvaged during <br />construction will be replaced during final reclamation, with a combined total of <br />no less than four feet to be replaced on the face of DWDA #3. <br />4. For DWDA #2, soil samples will be collected on no greater than 100 -foot <br />centers. Each location will be sampled in increments of 0-9" and 9-24". The <br />upper increments will be analyzed individually for the criteria listed in Table 25A <br />Soil Test Parameters. A representative composite of the 9-24" increment will be <br />similarly analyzed for the criteria listed in Table 25B. The soil analysis report <br />shall include recommended soil enhancements. <br />a. Areas with suitable topsoil cover material will be seeded with the <br />approved seed mix (Table 26). Soil enhancements will be added in <br />accordance with the reported recommendations. <br />b. Any areas with unsuitable material (Table 16) will receive an additional <br />nine inches of topsoil from the topsoil storage pile located east of the <br />DWP and be resampled prior to seeding. <br />The area will be fenced prior to the first growing season. <br />During the second growing season, a visual reconnaissance of the seeded area <br />will be conducted to determine the desirability of inter -seeding to ensure the <br />achievement for plant density and diversity. Noxious weeds shall be controlled <br />either mechanically or with a Division approved herbicide. <br />6. During the fifth growing season, the area will be fully evaluated for progress <br />toward vegetation success. This will ensure a timely response should additional <br />action be required to meet reclamation standards. The Division will be provided <br />with the results of this evaluation. <br />Section 2.05 RN -6 10/17/2016 <br />